342240321 has 8 divisors (see below), whose sum is σ = 456772320. Its totient is φ = 227934272.

The previous prime is 342240319. The next prime is 342240359. The reversal of 342240321 is 123042243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 342240321 - 2¹ = 342240319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342240421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52920 + ... + 59033.

It is an arithmetic number, because the mean of its divisors is an integer number (57096540).

Almost surely, 2^342240321 is an apocalyptic number.

It is an amenable number.

342240321 is a deficient number, since it is larger than the sum of its proper divisors (114531999).

342240321 is a wasteful number, since it uses less digits than its factorization.

342240321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112975.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 342240321 is about 18499.7384035559. The cubic root of 342240321 is about 699.4828295655.

Adding to 342240321 its reverse (123042243), we get a palindrome (465282564).

The spelling of 342240321 in words is "three hundred forty-two million, two hundred forty thousand, three hundred twenty-one".